Ok, I submitted a bug report (https://bugs.swift.org/browse/SR-4347 <https://bugs.swift.org/browse/SR-4347>) and I'll try to fix it in the next few days.
Thanks and best regards Toni > Am 24.03.2017 um 18:51 schrieb Mark Lacey <mark.la...@apple.com>: > >> >> On Mar 24, 2017, at 3:08 AM, Toni Suter via swift-users >> <swift-users@swift.org <mailto:swift-users@swift.org>> wrote: >> >> Hi, >> >> If I declare a variable and initialize it with an array literal whose >> elements are integer literals and nil literals, >> the compiler will infer the type Array<Optional<Int>> for that variable: >> >> let arr = [1, nil, 3] >> print(type(of: arr)) // Array<Optional<Int>> >> >> However, that only works with nominal types such as Int and String. If I do >> the same thing with an array of tuples, >> I get a compile error: >> >> let arr = [(1, false), nil, (3, true)] // error: type of >> expression is ambiguous without more context >> print(type(of: arr)) >> >> Why can't the compiler infer the type Array<Optional<(Int, Bool)>> in this >> example? Is there a reason for this or is it a bug? > > Offhand it seems like we should be able to properly handle this. Can you open > a bug report at bugs.swift.org <http://bugs.swift.org/>? > > Mark > >> >> Thanks and best regards, >> Toni >> >> _______________________________________________ >> swift-users mailing list >> swift-users@swift.org <mailto:swift-users@swift.org> >> https://lists.swift.org/mailman/listinfo/swift-users >> <https://lists.swift.org/mailman/listinfo/swift-users>
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